HBM 5020 is a high-density polyethylene with broad molecular weight distribution, specially developed for small blow molded bottles. Produced by Basell license, this grade features high stiffness, easy flow, very good Environmental Stress Cracking Resistance (ESCR), chemical resistance, and sufficient impact strength.
 
Key Features
High Stiffness: Provides structural integrity to the molded products, ensuring durability and resistance to deformation.
Easy Flow: Facilitates smooth processing in blow molding operations, allowing for the production of intricate bottle shapes and designs.
Very Good ESCR: Enhances the product's durability against stress cracking when exposed to harsh chemicals and environments.
Chemical Resistance: Offers resilience against various chemicals, making it ideal for packaging consumer and dangerous goods.
 
Applications
Multipurpose Blow Molding: Suited for the production of small bottles used in a variety of sectors including consumer goods and hazardous materials.
Packaging: Ideal for containers that need to withstand harsh chemicals and stress, such as cleaning supplies and industrial chemicals.
 
Additives
Antioxidant: Yes, to inhibit oxidation and maintain the polymer's integrity during processing and lifespan.
Processing Aid: No, ensuring the material properties are optimized for blow molding without modifications.
Antiblock: No, to maintain the clarity and quality of the blow molded products.
Slip Agent: No, ensuring that the properties of the final product meet the specific requirements for stiffness and ESCR.
 
Typical Properties
High Load Melt Flow Index (HLMI): 22 g/10 min at 190°C under a 21.6 kg load (ISO 1133), indicating high material flow under high load conditions suitable for blow molding.
Melt Flow Index (MFI): 0.3 g/10 min at 190°C under a 2.16 kg load (ISO 1133), reflecting the material's flow characteristics under standard conditions.
Density: 0.950 g/cm³ (ISO 1183), which contributes to the high stiffness and impact strength of the material.
Bulk Density: Greater than 0.50 g/cm³ (ISO 60), important for handling and storage considerations.
 
Mechanical Properties
Tensile Modulus of Elasticity: 1000 MPa (ISO 527-1,2), indicating the material's ability to resist deformation under stress.
Tensile Stress at Yield: 25 MPa (ISO 527-1,2), the stress at which the material begins to deform permanently.
Tensile Strain at Yield: 9% (ISO 527-1,2), demonstrating the ductility of the material at the yield point.
 
Environmental Stress Cracking Resistance
ESCR: 150 hours (Basell method), showcasing the material's durability under stress in harsh chemical environments.
 
Thermal Properties
Melting Temperature: 131°C (ISO 3146), indicating the temperature at which the material transitions from solid to liquid.
Vicat Softening Temperature: 78°C (ISO 306), the temperature at which the material begins to soften under a specified load.
 
Conclusion
HBM 5020 is an excellent choice for manufacturers looking for HDPE with high stiffness, excellent flow properties, and superior environmental stress cracking resistance. It is especially suited for the production of small bottles that require durability and chemical resistance, making it ideal for both consumer and industrial applications.